V's Grilling Marinade

"This marinade works well with beef, chicken, pork, and portobello mushrooms. I like to use sirloin tips or a flank steak sliced on the bias and cook it to medium-rare. The tea adds a touch of smoky flavor. I substitute orange juice if I don't have pineapple juice. I don't always add the sherry, but I use it when I have it."